@mixin horizontally {
      margin-left: auto;
      margin-top : auto;
}

@mixin absoluteCenter{
      position: absolute;
      left: 0;
      top: 0;
      right: 0;
      bottom: 0;
      margin: auto;
}

@mixin clearboth {
      content: "";
      display: block;
      clear: both;
      overflow: hidden;
}

@mixin transform( $arg : left 0s ){
      -webkit-transform: $arg;
      -o-transform: $arg;
      -ms-transform: $arg;
      -moz-transform: $arg;
      transform: $arg;
}